Hone



' June 24, 1947.

L. 0', THRUN' ,HONE

Fiied March 25, 1945 2 Sheets-Sheet Inventor law/e00 Eran.

1.. o. THRUN June 24, 1947.

HONE

Filed March 23, 1945 2 Sheets-Sheet 2 Q I l/ Iuventar Zawrence 7%711/7.

y Qt Patented June 24, 1947 UNITED STATES PATENT OFFICE HONE Lawrence ()1. Thrun, Pine City, Minn.

'Ap'plica tion March '23, 1945, Serial No. 584,325

4 Claims. 1

This invention relates to a hone and more particularly to a hone adapted to be utilized in conjunction with emery cloth for machine operation, such, :for example, as the honing or holes.

A primary object of this invention is the provision of :an improved hon-e, characterized :by adjustabili-ty or size, effected by varying thicknesses of emery cloth on the exterior thereof, taken from a supply positioned interiorly of the hone.

An additional object of the invention resides in theprovision of a hone characterized by improved means for securing the same in related assembly, whereby after the thickness of the, emery paper is adjusted as desired, the same may be held in position securely and eiieotivelyw yet readily. released for readjustment whennecessary.

A'further and very important object of the invention resides the provision of means in as sociation with. such a hone, whereby in the event of imperfect adjustment the hone is prevented from sticking or jamming in the hole.

An additional object of the invention is the provision of :a hone characterized by an -=exterior casing, having a slight resiliency thereto, pernutting suffioient play to insure proper operation, in theevent that the thickness or the emery paper or the like on the exterior thereof is greater than necessary 7 Still other objects reside in the provision of a hone which will be sturdy and durable in construotion, reliable and efficient in operation, and relatively simple and inexpensive to manufacture and assemble.

Other objects reside in the combinations of elements, arrangements of parts, features of construction, all as will be more fully pointed out hereinafter and shown in the accompanying drawing, wherein there is disclosed a preferred embodiment of this inventive concept.

In the drawing:

Figure l is a side elevationalview of one form of hone embodying the features of this inventive concept.

Figure 2 is a view partially in elevation and partially in longitudinal section of the hone shown in Figure 1.

Figure 3 is an enlarged sectional view taken substantially along the line 33 of Figure 1, but disclosing the emery cloth utilized in association with the device in position.

Figure 4 is an enlarged sectional View taken substantially along the line 4-4 of Figure 1 and viewed in the direction indicated by the arrows.

Figure 5 is a side elevational view of a modified .2 form of hone embodying features of this invention.

Figure 6 is a longitudinal sectional view of the device disclosed in Figure Figure '7 is an elevational view of a constructional detail.

Figure '8 is a sectional view taken substantially along the line 8 of Figure 5 as viewed in the direction indicated by the arrows.

Figure 9 is a sectional view taken substantially along the line 99 of Figure 5 as viewed in the direction of the arrows.

Figure 10 is a sectional view taken substantially along the line 'I'0l0 of Figure 5, viewed in the direction indicated by the arrows, and

Figure 11 is a sectional view taken substantially along the line iL-H of'Figure 5 as viewed in the direction indicated by the arrows.

' Similar reference characters refer to similar parts throughout the several views'oi the drawing.

Having reference now to the drawing and more particularly to the construction shown in Figures 1 to 4 inclusive, it will be seen that the device is comprised of a 20, having integrally assooiated therewith a collar 2-], provided with a peripheral bevel 42. The shank 20 includes an extending portion 23, provided with a longitudinally extending slot-'24, and terminates in the threaded extremity 25. Surrounding the portion 23 or the shank 22) is a sleeve 26, provided with a longitudinal slot 2 and 'int-eriorly beveled as at 2% and 2B. Bevel #28 is adapted to coact with the bevel 22 of flange 2], while a beveled collar '30 enacts with the bevel '29 in a manner to be more fully point-ed out hereinafter. A nut 3| is adapted to engage the threaded portion 2-5 exteriorly of the collar 30.

Extending from the extremity of the slot 21, about an arc of approximately of the cylinder are circumferential cuts or slots 32.

From the foregoing the operation of the device should be readily understandable. Emery cloth '33 is passed through the slot 21, and engaged in the slot 24. Loosening of the nut 3'! permits the members 30 andthe bevel 22 to disengage from their associated bevels 28 and 29, to permit the rotation of the shank 20 with respect to the sleeve 26. Through means of this rotation the thickness of emery paper about the exterior periphery of the sleeve 26 may be readily changed, and when the desired thickness is achieved, tightening of the out 3! will cause the parts to look through the wedging action of the bevels previously described, and the device is ready for use.

The circumferential slots 32 provide a segment 34 of the device which is relatively resilient, m such manner that in the event too much emery paper is positioned on the outside of the device for a given job, a certain amount of play is permitted in the sleeve, in order that the honing may be effected without sticking of the device in the hole.

Having reference now to the modification disclosed in Figures -11 inclusive,'there is shown at 49 a shank, provided with two longitudinal slots 4! and 42, and having a groove 43 peripherally thereabout adjacent one extremity. The opposite end of the shank 40 is threaded as at 44 and provided with a key 45 for a purpose to be more fully described hereinafter.

Adapted to be positioned around the shank 49 is a sleeve 45, provided with a longitudinal slot 41, adapted to coact with the slot 4| in a manner similar to the previously described slots 24 and 21, and a second slot (not shown) adapted to coact in a similar manner with the slot 42.

The slot 41 has'circumferential slots 48 adjacent its extremities which serve a similar purpose to. the previously described slots 32.

A portion 49 of the bore of sleeve 46 is enlarged, as at 59, and is adapted to encircle a split ring 5!, seated'in the annular groove 4'3of the shank 49 when the parts are in related assembly. The opposite end of sleeve 46 is interiorly beveled as at 52, and is adapted to be engaged by bevel 53 on a collar 54, which has an interior channel 55 adapted to coact with the key 45. A nut 55 is positioned on the extremity of the device beyond the collar 55.

The operation of this form of device is substantially similar to that previously described, in that emery cloth or the like is adapted to be passed through the slots 41 and 41, and suitably adjusted by rotation of the shank 40, this being effected by loosening the nut 55. It will be seen that when the nut 56 is loosened, the bevels' 52 and 53 may be separated in such manner as to 7 permit relative rotation of the shank 40 in the sleeve 46. Itwill also be seen that when the nut is tightened, such relative movement is impossible.

This form of device may be readily disassembled by removal of the nut 56, and collar 54, passing the shank rearwardly until the split ring 5! is exterior of the enlarged portion 50 of the sleeve, whereupon the split ring will drop off and the device may be readily and completely disassembled.

From the foregoing it will now be seen that there is herein provided a device accomplishing all the objects of this invention, and others including many advantages of great practical utility and commercial importance. 1

As many embodiments may be made of this inventive concept, and as many modifications may be made in the embodiment hereinbefore shown and described, and it is to be understood that all matter is to be interpreted merely as illustrative and not in a limiting sense.

I claim:

1.,In an abrading tool, a shaft about which a roll of abrading material is adapted to be wound, a sleeve supported in spaced concentric relation to the shaft, said sleeve having an elongated longitudinal aperture in its periphery through which the abrading material is adapted to be payed out from the roll and wound about the sleeve to form a substantially cylindrical abrading surface onthe exterior of the sleeve, said sleeve having a plurality of elongated transverse apertures communicating with the longitudinal apertures to form a yielding surface for the support of the abrading material.

2. In an abrading tool, a, shaft about which a roll of abrading material is adapted to be wound,

a sleeve supported in spaced concentric relation to the shaft, said sleeve having an elongated longitudinal aperture in its periphery through which the abrading material is adapted to be payed out from the roll and wound about the sleeve to form a substantially cylindrical abrading surface on the exterior of the sleeve, said sleeve having an elongated transverse aperture communicating with each end of the longitudinal aperture to form a yielding surface for the support of the abrading material.

3. In an abrading tool, a shaft about which a roll of abrading material is adapted to be wound, a sleeve supported in spaced concentric relation to the shaft,' said sleeve having an elongated 1ongitudinal aperture in its periphery through which the abrading material is adapted to be payed out from the roll and Wound about the sleeve to form a substantially cylindrical abrading surface on the exterior of the sleeve, said sleeve having a plurality of elongated transverse apertures communicating with the longitudinal aperture to form a yielding surface for the support of the abrading material and means to hold the sleeve and shaft against relative motion.

4. In a device of the character described, a shank, a sleeve supported in spaced concentric relation with said shank, said sleeve having an elongated longitudinal aperture therein and a transverse elongated aperture extending from each end of the longitudinal aperture to a point substantially therefrom to establish resiliency in a portion of said sleeve and means for locking said sleeve and shank against relative rotation.

LAWRENCE O. THRUN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,960,555 Sims i. May 29, 1 934 1,973,307 Ducato Sept. 11, 1934 1,975,193 Cooper Oct. 2, 1934 2,174,945 Palotce Oct. 3, 1939 2,366,158 Steenbock et al Jan. 2, 1945 FOREIGN PATENTS Number Country Date 400,754 England Nov. 2, 1933 

